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| Posted by | Greg Cross |
| Posted on | 05/05/06 04:29 |
| Number of views | 12715 |
The 'Sheep Test":
To round off this review, we will run some advanced tests on the Memorex 16X-DDL-IN. These tests are: 'Sheep Test", protected audio discs and some special disc tests.
For this test, we will use the Sheep tests made by Alexander Noé. Why is it called sheep test? That's because the logo of the first 1 to 1 copy program called CloneCD is a sheep. When looking at supported writers, you will notice that the feature list has sheep to indicate if a feature is supported or not. In this case we are interested in the writer's ability to backup/write weak sectors. Also called: 'Correct EFM encoding of regular bit-patterns".
- No sheep: Can't backup any safedisc 2 versions without the help of software tricks
- 1 Sheep: Can backup safedisc 2 up to version 2.4x without software tricks
- 2 Sheep: Can backup safedisc 2, including version 2.5x
- 3 Sheep: Can write all possible weak sectors, few if any writers could do this.
One of our forum moderators Womble, has written a guide concerning the 'Sheep Test" that can be found here.
In the screenshot below taken from CloneCD, we see the Memorex 16X-DDL-IN supports all features.
The Memorex 16X-DDL-IN supports DAO-RAW96 recording mode, which basically means, it can write uncorrected data and sub-channel data.
| Sheep Tests | Reader: |
| One Sheep Burner | Yes |
| Two Sheep Burner | Yes |
| Safedisc v2.90 | No |
| Three Sheep Burner | No |
As we can see from the table the Memorex 16X-DDL-IN is a 'Two Sheep Burner", although it was not able to complete our Safedisc 2.90 test.
Overburning:
700MB (80 minute) over-burn test:
For this test we used a Ridata 80min/700mb CD-R.
From the screenshot above, it was clear the Memorex 16X-DDL-IN should be able to write the 80 minute media at its full length. We then set up a test over-burn with Nero CD-Speed. We set the test at 89:57.74 to be exact, and then attempted to write a test disc.
The Memorex 16X-DDL-IN successfully created our test disc. We then tested to see if the Memorex 16X-DDL-IN could read our created disc. As you can see from the screenshot below, the Memorex 16X-DDL-IN could recognise the overburned disc but failed to read the complete disc.
We can conclude that the Memorex 16X-DDL-IN can not overburn CD-R media at up to 89 minutes and 57 seconds.
DVD+R overburn test
Unfortunately the Memorex 16X DDL-IN does not support DVD+R overburning.
This concludes our Memorex 16X-DDL-IN review, let's head on to the last page to read our conclusion…
DVD+R DL/-R DL Writing performance
I've used it to burn a few data-only DVD's but then somehow it got dirty. I've tried cleaning the lens repeatedly with a Maxell Lens Cleaner Disk but it does absolutely nothing.
Anyhow the unit cost me $160, I burned about 10 data DVD's & 10 data only CD's and now I have to throw it in the trash as nothing can clean it.
Every DVD I've tried to copy fails with error message "burner is dirty". Nothing cleans it
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